Immanuel loeenzen



(No Model.) I I LLORENZEN,

DEVICE FOR STRETGHING BED BOTTOMS. 7 No. 257,598. Patented May 9,1882,

Fig? (2,

lnvnzo-n- UNITED STATES PATENT OFFICE.

PEERLESS WIRE MATTRESS COMPANY, OF SAME PLACE.

DEVICE FOR STRETCHING BED-BOTTOMS.

SPECIFICATION forming part of Letters Patent No. 257,598, dated May 9, 1882.

Application filed April 10, 1882. (No model.)

To all whom it may concern:

Be it known that I, IMMANUEL LORENZEN, of Hartford, in the county of Hartford and State of Connecticut, have invented certain 5 new and useful Improvements in Devices for Stretching Bed-Bottoms; and [do hereby declare that the following is a full, clear, and exact description thereof, whereby a person skilled in the art can niake'and use the same,

[ reference being had to the accompanyin g drawings, and to the letters of reference marked thereon.

Like letters in the figures indicate the same parts.

5 My improvement relates to a device for stretehingthematerialof which aimed-bottom is formed after it has been attached to the frame, and is particularly adapted for giving different degrees of tension to woven or coiled wire fabrics, so that the elasticity can be adjusted at will.

The object of my invention is to provide a more simple, cheaper, and more easily operated device for this purpose than has hereto- 2 5 fore been in use.

In the accompanying drawings, illustrating my invention, Figure 1 shows a side view of the corner of a bed-frame embodying my improvement. Fig. 2 is an end view of the same.

0 Fig. 3 is a top view of the same.

The fabric is supposed to be removed, as it does not constitute a material part of my invention. Any elastic fabric may be used with my stretching device.

5 A is the end of one of the side bars of the frame.

B is the end of one of the end bars. This end bar may be made in two parts, 15 and B, between which the fabric can be clipped and held; or the fabric may be attached to the end bar in any other convenient and customary manner. The fabric is intended to be held and supported by the end bars only.

C is the corner-iron. It is firmly secured to -the side bar by means of bolts or screwsD, as

shown in the drawings. The top edge of the corner-iron C is furnished with a flange, C, which turns inwardly and extends over the top of the end bar in such a manner and position that, in connection with the top of the side bar, it forms a guide for the end of the end bar, B. Between this flange and the top of the side bar the end bar fits and can slide back and forth. The corner-iron C also is provided with a flange, C which lies at right angles to its face and extends across the end of the side bar. This flange takes a bearin g on and under the end of the side bar and supports the bolt which connects it with the end bar.

E is a bolt which passes through the end of the bar B and through a hole in the flange C This bolt has a screw-thread out upon it,- and is furnished with a nut, F, upon the outside of the flange. By turning this out the bolt is drawn out or slackened, according as it is desired to give a greater or less tension to the fabric attached to the end bar, B. As the nut F is tightened or loosened the barB slides between the flange C and the top of the side bar.

What I claim as my invention is- The corner-iron C, provided with theflange C above and parallel to the top of the side bar, A, and the flange C at right angles to said side bar, in combination with the side bar, A, the sliding end bar, B, and the bolt and nut E F, substantially as described.

IMMANUEL LORENZEN. Witnesses:

EDWIN F. DIMooK,

THEO. G. ELLIS. 

